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Inclusion of a nonzero volume fraction of the new phase in the kinetics of crystallization of melts

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Abstract

The growth rate of nuclei is calculated in self-consistent mean field approximation with allowance for the screening of a selected nucleus from heat fluxes, and an expression is obtained for the screening length of the heat flux. It is shown that the growth rate of a nucleus depends on the degree of crystallization of the melt. The influence on the crystallization process of collisions of the particles as they coalesce into a polycrystalline solid is investigated. A refinement of the size distribution function in the thermal Ostwald ripening stage is obtained.

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Authors and Affiliations

  1. Sumy State Agricultural University, 244030, Sumy, Ukraine

    A. V. Koropov

  2. Institute of Problems of Machine Building, 199178, St. Petersburg, Russia

    S. A. Kukushkin & D. A. Grigor’ev

Authors
  1. A. V. Koropov
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  2. S. A. Kukushkin
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  3. D. A. Grigor’ev
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Additional information

Zh. Tekh. Fiz. 69, 53–58 (July 1999)

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Koropov, A.V., Kukushkin, S.A. & Grigor’ev, D.A. Inclusion of a nonzero volume fraction of the new phase in the kinetics of crystallization of melts. Tech. Phys. 44, 786–791 (1999). https://doi.org/10.1134/1.1259348

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  • DOI: https://doi.org/10.1134/1.1259348

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